基于33耦合器相位解调的光纤声音传感器设计

吴锋; 吴柏昆; 余文志; 钱银博; 何岩

doi:10.7510/jgjs.issn.1001-3806.2016.01.014

基于33耦合器相位解调的光纤声音传感器设计

1.
华中科技大学光学与电子信息学院, 武汉 430074;
2.
烽火通信科技股份有限公司, 武汉 430074

作者简介: 吴锋(1990-),男,硕士研究生,现主要从事光纤传感的研究。.

通讯作者: 钱银博, qianyinbo@hust.edu.cn ;

基金项目:
国家自然科学基金资助项目(61290315);国家科技支撑计划资助项目(2012BAH06B03)
中图分类号: TP212.4⁺4

Design of fiber acoustic sensors based on 33 coupler phase demodulation

1.
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China,;
2.
Fiberhome Telecommunication Technologies Co. Ltd., Wuhan 430074, China

Corresponding author: QIAN Yinbo, qianyinbo@hust.edu.cn ;

CLC number: TP212.4⁺4

摘要: 为了在某些应急情况下无源传输声音信号,采用基于光纤迈克尔逊干涉仪原理光纤声音传感的方法结合了收音弹性盘片和光纤粘接的工艺设计,使用33耦合器相位解调方法对传感信号进行相位解调,实现了一种新型光纤声音传感器系统。给出了干涉仪3路输出信号相位差的表达式,利用最小二乘法拟合求出干涉仪3路输出信号的平均相位差,取得了仿真与实际测试数据。经过测试,该系统可以准确有效地还原出设计带宽内的声音信号。结果表明,该光纤声音传感器系统适用于电磁恶劣等应急环境中,验证了该设计方案的可行性。
- 传感器技术 /
- 3 /
- 3耦合器 /
- 相位差 /
- 解调 /
- 光纤 /
- 声音传感器
Abstract: In order to transport acoustic signal passively in some emergent cases, a fiber acoustic sensor was designed based on the principle of an optical fiber Michelson interferometer, processing techniques of elastic discs and optical fiber adhesion, 33 coupler phase demodulation. The expressions of three phase differences of output signals were presented, and the average phase differences were calculated based on the least square method. Simulation data and test data were acquired. Experimental results demonstrate that a fiber acoustic sensor can restore acoustic signal accurately and effectively within designed bandwidth. A fiber acoustic sensor can be used in emergent environments such as severe electro-magnetic situation. The test results verify the feasibility of a fiber acoustic sensor.
- sensor technique /
- 3 /
- 3 coupler /
- phase difference /
- demodulation /
- fiber /
- acoustic sensor

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基于33耦合器相位解调的光纤声音传感器设计

作者简介: 吴锋(1990-),男,硕士研究生,现主要从事光纤传感的研究。.

通讯作者: 钱银博, qianyinbo@hust.edu.cn ;

Design of fiber acoustic sensors based on 33 coupler phase demodulation

Corresponding author: QIAN Yinbo, qianyinbo@hust.edu.cn ;

计量

基于33耦合器相位解调的光纤声音传感器设计

通讯作者: 钱银博, qianyinbo@hust.edu.cn;

作者简介: 吴锋(1990-),男,硕士研究生,现主要从事光纤传感的研究。

English Abstract

Design of fiber acoustic sensors based on 33 coupler phase demodulation

Corresponding author: QIAN Yinbo, qianyinbo@hust.edu.cn

全文HTML

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基于33耦合器相位解调的光纤声音传感器设计

作者简介: 吴锋(1990-),男,硕士研究生,现主要从事光纤传感的研究。.

通讯作者: 钱银博, qianyinbo@hust.edu.cn ;

Design of fiber acoustic sensors based on 33 coupler phase demodulation

Corresponding author: QIAN Yinbo, qianyinbo@hust.edu.cn ;

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基于33耦合器相位解调的光纤声音传感器设计

通讯作者: 钱银博, qianyinbo@hust.edu.cn;

作者简介: 吴锋(1990-),男,硕士研究生,现主要从事光纤传感的研究。

English Abstract

Design of fiber acoustic sensors based on 33 coupler phase demodulation

Corresponding author: QIAN Yinbo, qianyinbo@hust.edu.cn

全文HTML

目录